Sprite Atlas

SpriteAtlas using the C# SDL2 binding.

Disclaimer

Early proof on concept inspired by the C Sprite Atlas of Parallel Realities. Only works with .png.

NuGet Package Dependency

Install Sayers's SDL2 bindings is the easiest way to get SDL2 on C#. Search Sayers in the NuGet package manager in your IDE.

How to use

1. Create an Images directory.
2. Place .pngs in the directory.
3. Run the demo, it will display a single texture which contains the individual images collaged together side-by-side.
4. (Texture size can be adjusted in the Atlas class.)
5. You can also draw individual images from the Atlas by their simple name (for example to acquire an SDL_Texture pointer of Images/abc.png, just draw get_atlas_image("abc")). This texture that will be acquired does not call any Loading function, since it just blits from the existing atlas surface! Big performance saver.

Purpose

Make rendering faster with the simple SDL2 library by reducing the amount of textures loaded. Useful for making a 2D game engine, for example.

Code by Émile Fréchette.